/Engine/Plugins/FX/Niagara/Source/Niagara/Public/NiagaraSystemSimulation.h
bool Init ( [UNiagaraSystem](API\Plugins\Niagara\UNiagaraSystem) * InSystem, [UWorld](API\Runtime\Engine\Engine\UWorld) * InWorld, bool bInIsSolo, ETickingGroup TickGroup )